Respuesta :

Answer:

D.   3x² - x - 6

Step-by-step explanation:

If f(x) = 3x² - 4 and g(x)= x+2, find .

We know that (f - g)(x) = f(x) - g(x)

Then

(f - g)(x) = (3x² - 4) - (x+2)

            = 3x² - 4 - x - 2

            = 3x² - x - 4  - 2

            = 3x² - x - 6